What is a type 4 personal floatation device?

A Type IV personal flotation device (PFD) is a throwable floatation aid designed to be tossed to someone in distress in the water, rather than worn. Common examples include life rings, buoyant cushions, and throw bags. While they provide assistance for someone already in the water, they do not replace the need for wearable PFDs, which are essential for continuous safety. Type IV devices are often required on boats, depending on size and type, as part of safety regulations.